CVE-2026-24285
7.0 · HIGHUse after free in Windows Win32K allows an authorized attacker to elevate privileges locally.
Overview
CVE-2026-24285 is a high-severity vulnerability affecting microsoft 365_copilot. It was published on March 10, 2026 and has a CVSS 3.1 base score of 7.0 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.0, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
Technical description
Use after free in Windows Win32K allows an authorized attacker to elevate privileges locally.
Remediation
Check the references section for vendor advisories and patches from microsoft. Update 365_copilot to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| microsoft | 365_copilot | >= 0, < 16.0.19822.20000 | Affected |
| microsoft | windows_10_1607 | >= 0, < 10.0.14393.8957 | Affected |
| microsoft | windows_10_1809 | >= 0, < 10.0.17763.8511 | Affected |
| microsoft | windows_10_21h2 | >= 0, < 10.0.19044.7058 | Affected |
| microsoft | windows_10_22h2 | >= 0, < 10.0.19045.7058 | Affected |
| microsoft | windows_11_23h2 | >= 0, < 10.0.22631.6783 | Affected |
| microsoft | windows_11_24h2 | >= 0, < 10.0.26100.7979 | Affected |
| microsoft | windows_11_25h2 | >= 0, < 10.0.26200.7979 | Affected |
| microsoft | windows_server_2016 | >= 0, < 10.0.14393.8957 | Affected |
| microsoft | windows_server_2019 | >= 0, < 10.0.17763.8511 | Affected |
| microsoft | windows_server_2022 | >= 0, < 10.0.20348.4830 | Affected |
| microsoft | windows_server_2022_23h2 | >= 0, < 10.0.25398.2207 | Affected |
| microsoft | windows_server_2025 | >= 0, < 10.0.26100.32463 | Affected |
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Frequently asked questions
What is CVE-2026-24285?
CVE-2026-24285 is a high-severity vulnerability affecting microsoft 365_copilot. It was published on March 10, 2026 and has a CVSS 3.1 base score of 7.0 (HIGH).
How severe is CVE-2026-24285?
This vulnerability has a CVSS 3.1 base score of 7.0, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2026-24285?
Check the references section for vendor advisories and patches from microsoft. Update 365_copilot to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-24285?
CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-24285 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.
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